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b77e3682b3
Makes sure that the unwind info uses 64bits pcrel relocation if a large code model is specified and handle the corresponding relocation in the ExecutionEngine. This can happen with certain kernel configuration (the same as the one in https://reviews.llvm.org/D27609, found at least on the ArchLinux stock kernel and the one used on https://www.packet.net/) using the builtin JIT memory manager. Co-authored-by: Yichao Yu <yyc1992@gmail.com> Differential Revision: https://reviews.llvm.org/D27629
21 lines
1.1 KiB
ArmAsm
21 lines
1.1 KiB
ArmAsm
# RUN: llvm-mc -triple=arm64-none-linux-gnu -large-code-model -filetype=obj -o %T/large-reloc.o %s
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# RUN: llvm-rtdyld -triple=arm64-none-linux-gnu -verify -map-section large-reloc.o,.eh_frame=0x10000 -map-section large-reloc.o,.text=0xffff000000000000 -check=%s %T/large-reloc.o
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# RUN-BE: llvm-mc -triple=aarch64_be-none-linux-gnu -large-code-model -filetype=obj -o %T/be-large-reloc.o %s
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# RUN-BE: llvm-rtdyld -triple=aarch64_be-none-linux-gnu -verify -map-section be-large-reloc.o,.eh_frame=0x10000 -map-section be-large-reloc.o,.text=0xffff000000000000 -check=%s %T/be-large-reloc.o
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.text
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.globl g
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.p2align 2
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.type g,@function
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g:
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.cfi_startproc
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mov x0, xzr
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ret
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.Lfunc_end0:
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.size g, .Lfunc_end0-g
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.cfi_endproc
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# Skip the CIE and load the 8 bytes PC begin pointer.
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# Assuming the CIE and the FDE length are both 4 bytes.
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# rtdyld-check: *{8}(section_addr(large-reloc.o, .eh_frame) + (*{4}(section_addr(large-reloc.o, .eh_frame))) + 0xc) = g - (section_addr(large-reloc.o, .eh_frame) + (*{4}(section_addr(large-reloc.o, .eh_frame))) + 0xc)
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